Folder for sewing-machines.



J. P. was. FOLDER FOR SEWING MACHINES.

APPLICATION HLED APR.10| I909- 1,186,O53. v PatentedJune 6,1916.

UNITED STATES PATENT orricu.

JOHN P. WEIS, OF NYACK, NEW YORK, ASSIGNOR T0 LIlG IUSv N. LITTA-UER, OF

GLOVERSVILLE, NEW YORK.

FOLDER FOR SE'WING-MACHINES:

Application filed April 10, 1909.

To all whom it may concern Be it known that I, JOHN P. WEIS, a citizen of the United States, residing in Nyack, county of Rockland, and State of New York, have invented a new and useful Improvement in Folders for Sewing-Machines, of which the following is a description.

This invention relates to folders for sew ing machines, and particularly to that class of folders or cloth-turning devices which are adapted for manipulating a collarette ,technically so known.

Among the objects of this invention the following may be noted: to provide a folder which will manipulate the binding-material, such as a collarette for knit undershirts, so that it may be smoothly fed to the stitching position in a. sewing machine with its edges evenly hemmed preparatory to attachment to the body-material of a shirt along the neck-opening thereof; to provide a folderwhich will eliminate from the binding or collarette material the initial curl it has prior to being led into the folder; to provide a special construction by means of which the curl in the edge of the knit binding or collarette is eliminatedand the binding led to the hemming-portion of the folder smooth and without curl; and to provide means whereby the uncurling operation, upon the collarette or binding material, begins the moment the latter enters the folder and which means prevents the said binding from curling at any time during its passage through the folder.

With the above objects in view, and others which will be detailed during the course of this description, the invention consists in the parts, features and combinations of elements hereinafter described and claimed.

In the drawings: Figure 1 is a plan View of the blank forming the back of the folder; Fig. 2 is a plan view of the blank forming the front of the folder; Fig. 3 is a front elevation of the complete folder; Fig. 4 is a rear elevation of the complete folder; and Fig. 5 is a transverse section onthe line 55 of Fig. 4. I

Referring to Fig. 2 of the drawings, it will be seen that the front-blank of the folder comprises the wide, angular, rearend-portion 1, narrowed to a considerable extent by incurves 2, at opposite sides thereof, extending to opposite projections or fastening-lugs 3, in rear of an elongated,

Specification of Letters Patent.

Patented June 6, 1916.

Serial No. 489,108,

narrowed, slightly tapered front-end extenslon 4, the extreme end of which is hollowed out in spread U-form, as indicated at 5. In its center, and extending longitudinally thereof, the blank is formed with a: narrow, elongated slot 6. At the junction of extenslon. 4 with the base of the lugs. 3,. the blank is recessed on opposite sides, as indicated at 7. The back-blank of the folder, see Fig. 1,

n comprises the angular, front-end portion 8,

concaved side of the folder, the convexed portion 13, at the front of the folder, and the tongues 14, at the forward end of the folder, which aid, in forming the hem in the opposite edges of the binding-material. Likewise, the back-blank of the folder is bent substantially centrally longitudinally so as to conform, as nearly as possible, to

the bends and curvature given to the frontblank, the result being that, when the two blanks are put together after being thus bent, the rear end 11 of the tongue of the back-blank projects a considerable distance beyond the rear end of the front-blank, see Figs. 3 and 4, the extending portion of said tongue lying close to the rear-end of the I front blank so that, between the two, acliam nel for the binding is provided. The rear end loops 12 of the front-blank, see Fig. 4, are then secured by means of the lugs 3 to the back-blank by soldering or otherwise, the said lugs 3 being, for the purpose, turned in'toward the said back-blank at an angle to the rear-end loops 12, thus securing the front and back blanks together and also leaving a channel 15 on opposite sides of the rear end of the folder between the portion 10 of the back-blank and the loops 12 of the front-blank, see Figs. 4 and 5, within which the edges of the binding-strip are received and through which they are guided, as clearly shown in Fig. 4. At its front end, the back-blank is curved around the tongues l4, and wings 9 are overturned or bent upon the forward end of the folder, said wings being soldered or otherwise rigidly secured to the convened front-side of the frontblank; as clearly shown in-=Fig. 3, thus providing the hem-guiding channel 16, run.- ning clear to the forward end or throat of the folder. Hence, by the said lugs 3 and the said wings 9, the front and back blanks are rigidly secured together and in proper relation to afford, at the rear end of the folder, an uncurling device and, at the forward end of the folder, a hem-turning scroll at opposite sides for giving to the edges of the binding their initial turn in the right direction for application to the body-fabric, or material to which the binding is to be attached.

is shown in Fig. 3, the tongues 14 extend nearly to the front end of the folder, as indicated at 17, the front end 8 of the back-blank being inturned and given a U-form at substantially a rightangle to its body-portion. 10, so as to provide the throat-portion 1S, affording the channel 19, into which the body of the binding is turned at a rightangle to its previous travel through the folder, the U-shaped throat-portion 18, extending from the convened side of the folder into the concaved side and between the two scrolls of the folder. This manner of manipulating the binding brings the edges thereof into the said throat 18 in superposed condition, as shown in Fig. et, at 20; but, as is well understood, the body-material or garment is led into the throat-portion 1.8 to the bottom of its channel 19, between the two hemmed edges 20, and the materials thus combined are stitched together in usual manner. To provide a means by which to secure the folder to the machine, I secure thereto an attaching-bracket, generally indicated by 21, having portions 22, soldered to the conveXed side of the folder substantially at the middle thereof, the said bracket being provided with openend slots 23, for the admission of the shanks of clampingscrews, which are tapped into the workplate of the machine, or an attachmentholder, as the case may be. An adjustable controlling-device 24k and auxiliary foldretaining devices 25 are combined with the folder, the latter being, in so far as these features just referred to are concerned, sub-- stantially the same as that covered by my joint application Serial No. 329,355, filed August 6, 1906.

The important feature of present in vention is, as previously stated, the uncurl ing-device provided at the rear or entry end of the folder, it being found that this disposition of the nncurlingdevice is much more effective and, in many cases, absolutely essential to the proper handling of the bind ing, which is usually of very elastic, lightweight, knitted goods, this binding being sometimes in the form of a specially prepared collarette and sometimes merely a strip or piece of knitted fabric. In all instances, however, it has great elasticity and is very difiicult to handle, owing to the inherent tendency of its edges to curl toward each other so that the strip becomes practically a double tube. The problem has always been to prevent this natural tendency of the edges of the binding-material to curl and, in actual practice and operation of my folder, the rear-end uncurling-devices have proven to be efiective, since the rear-end loops l2 and body portion 10, of the two blanks, cooperate so as to confine the bodyportion of the binding and keep it quite flat, while manipulating the edges of the said binding to gradually uncurl the same. This is acconmlished by threading the binding into the rear end. of the folder through the channel at 26, between the end 11 of the body portion 10 and the base 1 of the front blank, while the curled edges of the binding turn over the edges of the end 11 of the back-blank into the channel or space between the same and the rear-end loops 12, all as clearly shown in Fig. at, the said curled edges being gradually uncurled by the op eration of the gradually widened end 11 of the backblank until the said curl is completely taken out of the said edges at substantially the point 27, Fig. 4:, at which point the said edges begin to turn in opposite directions under the influence of the tongues Li and wings 9 of the respective blanks and thus take their initial turn in the right direction for producing the hemmed edges 20 in the completed work. This uncurling-device has proven effective, because it operates upon the binding from the mo ment it enters the folder, thus preventing it from going into the folder in the wrong condition, and because it continuously opcrate-s upon the edges of the binding up to the point where the hem-turning scrolls begin to operate upon them, thus maintaining control of the binding-material from end to end of the folder and preventing it from, at any time, acting in accordance with its normal tendency to curl into tubular form. The form of the folder is tapering from the middle to the opposite ends, and the rear end of the front-blank has its edge slightly turned or rounded at 27 to prevent the binding-material from being snagged or retarded in its passage through the folder.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A folder for bindings composed of two pieces of blank material. one of said blanks having its edges turned over the edges of the other blank at one end of the latter to form uncurlingdevices, and the other blank having its edges folded over the edges of the first-named blank at the end opposite the folds thereof, to form a means for giving the initial turn to the edge of the material after the uncurling operation, and said combined blanks having their front ends adjacent the folding portions thereof, provided with a deep recess and means for turning the binding material at a rightangle to the direction of its travel through and between the members.

2. A folder for bindings composed of two pieces of sheet material combined and secured together and formed to produce a combined folder and uncurling device tapered in opposite directions from substantially its middle; and said combined blanks being also formed substantially concavoconvex throughout the length of the folder; and one of said members being provided with portions extending over one end of the other member so as to produce an uncurling channel between the two, and the lastnamed member being provided With portions at the opposite end of the folder overhanging the first-named member, and providing between the two members means for initially folding the material for application to the article, the edge of which is to be bound; and means at the edge-folding end of the folder adapted to turn the binding material at a right-angle to its direction of travel through the folder and superpose the turned edges of the binding one upon the other, substantially as described.

3. A folder for bindings composed of two pieces of blank material joined to produce a channel for the guidance of material from end to end thereof, one of said blanks having its edges at one end turned over the edges of the other blank to form uncurling devices, and the other blank having its edges at the opposite end of the folder turned over the edges of the first named blank in a direction opposite to the turned edges of the first named blank to form hem turning devices, and said two blanks being also formed at the last named end of the folders with means for laying the hemmed. edges face to face against each other or against the material to which the binding is applied.

4. A folder for bindings composed of two pieces of blank material joined to produce a channel for the guidance of material from end to end thereof, one of said blanks having its edges at one end turned over the edges of the other blank to form uncurling devices, and the other blank having its edges at the opposite end of the folder turned over the edges of the first named blank in a direction opposite to the turned edges of the first named blank to form hem turning devices, and said two blanks being also formed at the last named end of the folder with means for laying the hemmed edges face to face against each other or against the material to which the binding is applied and simultaneously turning the binding in a direction substantially at a right angle to the direction of its travel through the folder.

In testimony whereof I have hereunto signed my name in the presence of two subscribing Witnesses.

JOHN P. WVEIS. Witnesses:

FRITZ BENDER, OSCAR DE Von.

copiel of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

